The NSAS General Meeting for November will be on Tuesday the 19th November at 7:30 PM at Regis Hall, Regis Campus, St Ignatius College, Lane Cove.
Our speaker this month is Angel Lopez-Sanchez from the AAO who is going to be talking about “Dissecting dwarf galaxies with the Anglo-Australian Telescope”.
As usual, visitors are most welcome!
Title: Dissecting dwarf galaxies with the Anglo-Australian Telescope
Dwarf galaxies provide fundamental clues about galaxy origin and evolution. Many of them have irregular shapes and have processed little their gas, although they possess many old stars born billions of years ago. Still, many dwarf galaxies are very gas-rich and are currently forming stars, sometimes in a spectacular way. With these new observations using the powerful KOALA+AAOmega instruments at the 3.9m Anglo-Australian Telescope we are “dissecting” these dwarf galaxies to characterize the properties of the gas and the stars within them. Combining these new data with deep radio observations at 21 cm of the diffuse, cold gas within and surrounding these dwarf galaxies we will get a better understanding of the local and global star-formation processes in galaxies, the feedback of the newborn stars into the galaxies, the importance of inflows and outflows of gas, and the chemical evolution of nearby dwarf galaxies.